Astrebla

Astrophytum myriostigmaClassification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cacteae
Genus: Astrophytum
Subgenus: A. subg. Astrophytum
Species: Astrophytum myriostigma
Name

Astrophytum myriostigma Lem. (1839)

Synonyms

Echinocactus myriostigma (Lem.) Salm-Dyck, Cact. Hort. Dyck.: 22. 1841 syn. sec. Guzmán Cruz & al. 2003
Cereus callicoche Galeotti ex Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 6(1): 88. 1839 syn. sec. Guzmán Cruz & al. 2003
Cereus inermis Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 6(1): 88. 1839 syn. sec. Britton & Rose 1922
Astrophytum depressum Lawr. in Gard. Mag. (London) 17: 321. 1841 syn. sec. Kew WCVP (2019)
Cereus colicochus Booth ex C.F.Först., Handb. Cacteenk.: 336. 1846 syn. sec. Kew WCVP (2019)
Astrophytum prismaticum Lem., Cactées: 50. 1868 syn. sec. Guzmán Cruz & al. 2003
Echinocactus myriostigma var. columnaris K.Schum., Gesamtbeschr. Kakt.: 321. 1898 syn. sec. Guzmán Cruz & al. 2003
Echinocactus myriostigma f. columnaris (K.Schum.) Schelle, Handb. Kakteenkult.: 151. 1907 syn. sec. Anderson 2005
Astrophytum myriostigma var. columnare (K.Schum.) Frič in Život v Přír. 29: 15. 1925 syn. sec. Guzmán Cruz & al. 2003
Astrophytum columnare (K.Schum.) Sadovsky & Schütz, Gattung Astrophytum: 159. 1979 syn. sec. Guzmán Cruz & al. 2003
Astrophytum quadratum Cobbold in Cact. J. (London) 2: 89. 1899 syn. sec. Anderson 2005
Echinocactus myriostigma var. nudus Rud.Mey. in Monatsschr. Kakteenk. 22: 136. 1912 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma var. nudum (Rud.Mey.) Frič in Život v Přír. 29: 10. 1925 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma subvar. nudum (Rud.Mey.) Backeb., Cactaceae 5: 2662. 1961 syn. sec. Korotkova 2021
Astrophytum myriostigma var. cereiforme Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson 2005
Astrophytum myriostigma var. grandiflorum Frič in Život v Přír. 29: 9. 1925 syn. sec. Anderson 2005
Astrophytum myriostigma var. minimiflorum Frič in Život v Přír. 29: 15. 1925 syn. sec. Anderson 2005
Astrophytum myriostigma var. nudicarpa Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson 2005
Echinocactus myriostigma subsp. potosinus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma subsp. potosinum (H.Moeller) K.Kayser in Kakteen-Freund 1: 57. 1932 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma var. potosinum (H.Moeller) Kreuz., Verzeichnis Amer. Sukk. Rev. Syst. Kakteen: 20. 1935 syn. sec. Anderson 2005
Astrophytum myriostigma var. potosinum (H.Moeller) K.Kayser in Borg, Cacti, ed. 1: 251. 1937 syn. sec. Anderson 2005
Echinocactus myriostigma subsp. quadricostatus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Guzmán Cruz & al. 2003
Echinocactus myriostigma var. quadricostatus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. WFO 2019
Astrophytum quadricostatum (H.Moeller) Houghton in J. Cact. Succ. Soc. Amer. 1: 157. 1930 syn. sec. ???
Astrophytum myriostigma subsp. quadricostatum (H.Moeller) K.Kayser in Kakteen-Freund 1: 57. 1932 syn. sec. Anderson 2005
Astrophytum myriostigma var. quadricostatum (H.Moeller) Baum in Kakteenkunde 1933: 205. 1933 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma var. quadricostatum (H.Moeller) Borg, Cacti, ed. 1: 251. 1937 syn. sec. Anderson 2005
Astrophytum tamaulipense Houghton in J. Cact. Succ. Soc. Amer. 1: 157. 1930 syn. sec. Korotkova 2021
Astrophytum myriostigma subsp. tamaulipense K.Kayser in Kakteen-Freund 1: 58. 1932 syn. sec. Anderson 2005
Astrophytum myriostigma var. tamaulipense (K.Kayser) W.T.Marshall & T.M.Bock, Cactaceae: 154. 1941 syn. sec. Anderson 2005
Astrophytum myriostigma subsp. tulense K.Kayser in Kakteen-Freund 1: 58. 1932 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma var. tulense (K.Kayser) Borg, Cacti, ed. 1: 310. 1937 syn. sec. Anderson 2005
Astrophytum myriostigma subvar. tulense (K.Kayser) Backeb., Cactaceae 5: 2660. 1961 syn. sec. Korotkova 2021
Astrophytum tulense (K.Kayser) Sadovsky & Schütz, Gattung Astrophytum: 159. 1979 syn. sec. Guzmán Cruz & al. 2003
Astrophytum myriostigma var. verum W.T.Marshall in Marshall & Bock, Cactaceae: 154. 1941 syn. sec. Anderson 2005
Astrophytum myriostigma var. strongylogonum Backeb., Cactaceae 5: 2661. 1961 syn. sec. Anderson 2005
Astrophytum mirum Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 7: 33. 2000 syn. sec. Kew WCVP (2019)

Distribution
Native distribution areas:

Continental: Northern America
Regional: Mexico
Mexico Northeast

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References
Primary references

Lemaire, C. 1839. Cactearum Genera Nova Speciesque Novae... Paris 4.

Additional references

Korotkova, N., Aquino, D., Arias, S., Eggli, U., Franck, A. , Gómez-Hinostrosa, C., Guerrero, P.C., Hernández, H.M., Kohlbecker, A., Köhler, M., Luther, K., Majure, L.C., Müller, A., Metzing, D., Nyffeler, R., Sánchez, D., Schlumpberger, B. & Berendsohn, W.G. 2021. Cactaceae at Caryophyllales. org–a dynamic online species-level taxonomic backbone for the family. Willdenowia 51(2): 251–270. DOI: 10.3372/wi.51.51208 Open access Reference page.

Links

Korotkova, N. et al. 2021. Astrophytum myriostigma in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published on the internet. Accessed: 2021 Nov 13. Reference page.
USDA, ARS, Germplasm Resources Information Network. Astrophytum myriostigma in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service.
International Plant Names Index. 2019. Astrophytum myriostigma. Published online. Accessed: Jul 15 2019.
The Plant List 2013. Astrophytum myriostigma in The Plant List Version 1.1. Published on the internet. Accessed: 2019 Jul 15.
Tropicos.org 2019. Astrophytum myriostigma. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Jul 15.

Vernacular names
English: Bishop's Cap
español: Birrete de Obispo
suomi: Täpläpiispanhattu
français: Cactus Mitre d'Évêque
한국어: 별선인장
Nederlands: Bisschopsmuts
svenska: Biskopsmössa

Astrophytum myriostigma, the bishop's cap cactus, bishop's hat or bishop's miter cactus, is a species of cactus native to the highlands of northeastern and central Mexico.

Synonyms include Echinocactus myriostigma, Astrophytum prismaticum, A. columnare, A. tulense, and A. nuda.

Astrophytum myriostigma is a spineless cactus defined by the presence of three to seven (usually five) pronounced vertical ribs which define the cactus' shape when young (the genus name "astrophytum", literally, "star plant", is derived from the resulting star-like shape). As the cactus ages, more ribs may be added and it becomes more cylindrical in shape, growing up to about 70–100 cm (2 ft 4 in – 3 ft 3 in) tall and 10–20 cm (4–8 in) in diameter. In the wild, globose to cylindrical stem is covered with a whitish flocking of trichomes. Some horticultural varieties lack the flocking.

In the wild, the cacti flower in early spring, so that their seeds can grow with summer rains. In cultivation this differs, and the plants may flower in summer. Plants produce one or more flowers 4–6 cm (1.6–2.4 in) diameter near the apex; the numerous tepals are creamy yellow, sometimes with an orange or red base. Pollinated flowers develop into a hairy reddish fruit about 2–2.5 cm (0.8–1.0 in) in diameter. Plants may take up to six years to flower. A. myriostigma is commonly grown as an ornamental plant in cactus collections.

This plant has gained the Royal Horticultural Society's Award of Garden Merit.[1]

References

"RHS Plant Selector - Astrophytum myriostigma". Retrieved 15 April 2020.